Collar light



FIG. 1 is a perspective view of a collar light showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a side elevational view thereof. 

I claim the ornamental design for a collar light, as shown and described. 